City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9049
Mt. Vernon
County, AL
63 C
#9050 Oakland City
County, IN
63 C
#9051 Orange City
County, FL
63 C
#9052 Panguitch
County, UT
63 C
#9053 Porterville
County, CA
63 C
#9054 Queen Creek
County, AZ
63 C
#9055 Richland
County, MO
63 C
#9056 Sabina
County, OH
63 C
#9057 San German
County, PR
63 C
#9058 Santo
County, TX
63 C
#9059 Sicily Island
County, LA
63 C
#9060 Skaneateles
County, NY
63 C
#9061 Snowmass Village
County, CO
63 C
#9062 Spanish Fork
County, UT
63 C
#9063 Splendora
County, TX
63 C
#9064 Stanton
County, TX
63 C
#9065 Stromsburg
County, NE
63 C
#9066 Taft
County, TX
63 C
#9067 Tama
County, IA
63 C
#9068 Tompkinsville
County, KY
63 C
#9069 Toms River
County, NJ
63 C
#9070 Tye
County, TX
63 C
#9071 Alabaster
County, AL
62 C
#9072 Alcorn State
County, MS
62 C
Frequently Asked Questions
How are city water quality rankings calculated?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two US cities directly?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.